Make packages for LfMerge.Tests match LfMerge
Make packages for LfMerge.Tests match LfMerge

We updated to the MongoDB drivers version 2.2.1 in LfMerge, so update
the version in package.config for LfMerge.Tests to the same versions.

sillsdev/LfMerge,ermshiperete/LfMerge,sillsdev/LfMerge,ermshiperete/LfMerge,ermshiperete/LfMerge,sillsdev/LfMerge